Skip to content
4/10/24 - Timberline will have limited fulfillment on core/turnkey kits for May. April has been filled. We have 2 spots in May, and further larger orders will likely ship in June when normall fulfillment continues. Smaller orders on 1-5 pieces shouldn't have too many hold ups. We appreciate your business and are working hard to keep up! 720-515-5933. Thanks!
4/10/24 - Timberline will have limited fulfillment on core/turnkey kits for May. April has been filled. We have 2 spots in May, and further larger orders will likely ship in June when normall fulfillment continues. Smaller orders on 1-5 pieces shouldn't have too many hold ups. We appreciate your business and are working hard to keep up! 720-515-5933. Thanks!
4x4 van drivetrain

4x4 Van Drivetrain Parts

Shop À la carte drivetrain parts related to 4x4 van conversions.

Filters

  • from $250.00

    4L80 Manual Transfer Case Shifter Kit

    Description This is a bolt-up manual transfer case shifter for the 4L80 transmission found in many GM pickups and vans. Our shifter is designed to...

    View full details
    from $250.00
  • $379.00

    8L90 Bolt-Up 4x4 Conversion Kit

    Description: This is the component kit required to convert a 2-wheel drive 8L90 transmission to 4x4. This conversion can be performed in-vehicle wi...

    View full details
    $379.00
  • $55.00

    Hub Spacer Kit 2WD to 4x4 Adapter Rings

    Description: Our CNC-cut powder-coated hub spacer is a key component of GM 4x4 van conversions where the original van knuckles are retained. These ...

    View full details
    $55.00
  • 4x4 Timberline 6L90 Kit
    from $1,795.00

    6L90 Bolt-up 4x4 Conversion Kit (no-cut)

    Description: This is a straightforward bolt-up solution for converting your 6L90 transmission to 4x4, without the need to cut the output shaft. To ...

    View full details
    from $1,795.00
  • 2WD to 4x4 4L80 Conversion Adapter
    from $595.00

    4L80 4x4 Conversion Adapter Kit (no-cut)

    Description: This is a straightforward bolt-on solution for converting your 4L80 transmission to 4x4, without the need to cut the output shaft. To ...

    View full details
    from $595.00
  • Sold out
    from $1,295.00

    8.25 IFS AAM Rebuilt Front Differential

    Description: Variations of the 8.25" front AAM carrier have been used in full size GMC vehicles since 1988. These are common in 1/2 ton Silverados...

    View full details
    from $1,295.00
    Sold out
  • from $2,095.00

    GM 4x4 Conversion Over The Counter Essentials Kit

    Description: This kit comprises the over-the-counter components necessary to complete our standard and Hi-Lift 4x4 torsion bar conversions on mos...

    View full details
    from $2,095.00
  • Timberline Hi Lift Chevy Van Knuckles
    $1,195.00

    GM 4x4 Conversion Hi-Lift Knuckles

    Description: These are our GM Hi-Lift Knuckles for Chevy Express and GMC Savana full-size vans. These knuckles are several inches taller than the c...

    View full details
    $1,195.00
  • from $199.00

    6L90 Manual Transfer Case Shifter Kit

    Description This is a bolt-up manual transfer case shifter for the 6L80 transmission found in many GM pickups and vans. Our shifter is designed to...

    View full details
    from $199.00
  • $75.00

    Timberline Helper Kit

    Description: Are you building a 4x4 van? Let us help you with the consumables. Drawing on our experience of hundreds of 4x4 conversions, these are ...

    View full details
    $75.00
  • from $14,195.00

    GM 4x4 5" Turn-key Hi-Lift Torsion Bar Conversion Kit

    Description: This is our turn-key 4x4 conversion kit for 2003-2023 G-series 2500/3500 vans. The design is an IFS (Independent Front Suspension) ...

    View full details
    from $14,195.00
  • $1,650.00

    NP261 Rebuilt Transfer Case for 4x4 Van Conversions

    Description: The NP261 was built by New Process (New Venture) and is a reliable chain-driven transfer case used primarily in Chevrolet and GMC veh...

    View full details
    $1,650.00
  • from $1,695.00

    9.25 IFS AAM Rebuilt Front Differential

    Description: The AAM 9.25 IFS axle was used in GM K-series trucks from 1988-2010. It features a lightweight cast aluminum housing and has 33 splin...

    View full details
    from $1,695.00
  • from $485.00

    GM Full Size 4x4 Conversion Custom Rear Driveshaft

    Description: We offer custom-built 1-piece driveshafts for 4x4 van conversions completed using our products. There is a good bit of variability in...

    View full details
    from $485.00
  • $395.00

    GM Full Size 4x4 Conversion Custom Front Driveshaft

    Description: We offer custom-built driveshafts for 4x4 van conversions completed using our products. There is a bit of variability in the lengths ...

    View full details
    $395.00